"Demobilized officer, finding peace incredibly tedious, would welcome diversion. Legitimate, if possible; but crime, if of a comparatively humorous description, no objection. Excitement essential... Reply at once Box X10." When the formidable Captain Hugh "Bulldog" Drummond places this advert in the paper, hungry for adventure following the Great War, he embarks on a career as the invincible protectorate of his country. His first reply comes from a beautiful young woman, who sends him racing off to investigate what at first looks like blackmail but turns out to be far more complicated and dangerous. Sapper—born Herman Cyril McNeile—introduces his wildly popular hero in this 1920 novel.